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Michael Holt is a Nobel-winning scientist.
- Michael Holt was mentioned in Season 9 and Season 11. He finally appeared in person in Smallville Season 11: Chaos #1.
- 4 Appearances of Michael Holt (Smallville)
- 1 Images featuring Michael Holt (Smallville)
- Quotations by or about Michael Holt (Smallville)
- Character Gallery: Michael Holt (Smallville)